Consulta: creatorFacets:"Miyazawa,Carlos S."
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Data/hora: 09/06/2024 18:29:44

Chromosome polymorphism in Ancistrus cuiabae Knaack, 1999 (Siluriformes: Loricariidae: Ancistrini)
Provedor de dados: 83
Autores: Mariotto,Sandra; Centofante,Liano; Miyazawa,Carlos S.; Bertollo,Luiz Antonio Carlos; Moreira Filho,Orlando.
Cytogenetic and FISH analyses were performed in 30 Ancistrus cuiabae specimens from a bay near the town of Poconé, in the Pantanal of Mato Grosso, Brazil. The observed diploid number was 2n = 34 chromosomes for both sexes and three distinct katyotypic formulae were found, namely cytotype A (20m, 8sm, 6st, Fundamental Number/FN = 68; 6 males and 11 females), cytotype B (19m, 8sm, 6st, 1a, FN = 67; 8 males and 4 females) and cytotype C (18m, 8sm, 6st, 2a, FN = 66; a single male). NORs's analyses showed that these regions were located in distinct sites on the NOR-bearing chromosome pair, according to cytotypes. Thus, in cytotype A, NORs were located in the terminal region of the short arm of the second metacentric chromosome pair; in cytotype B, they were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytogenetics; NOR; Pericentric inversion; Chromosomal evolution.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400006